.time_0{ position: relative; margin: 100px; width: 200px; height: 200px; border-radius: 50%; border: solid 1px #fff;}
.time_1{transform-origin:left 50%; position: absolute; top: 87px; left: 100px; width: 0;
    height: 0;
    border-top: 13px solid transparent;
   
    border-bottom: 13px solid transparent;
}
